Abstract: A database engine uses bitmap slice indices (BSIs) to combine result bitmaps derived from parent and child tables related via one or more foreign key relationships. To execute a query that involves a parent table and a child table, the database engine parses the query into a parent predicate corresponding to the parent table and a child predicate corresponding to the child table. The database engine executes the parent predicate using a parent bitmap index to generate a parent result bitmap and executes the child predicate using a child bitmap index to generate a child result bitmap. The database engine transforms the child result bitmap, based on the BSI, to generate a transformed child result bitmap having columns that correspond to the primary key of the parent table. The database engine can then combine the parent result bitmap directly with the transformed child result bitmap to generate query results.

Abstract: Methods and systems for converting user data from disparate sources to bitmap data are described, where user data from a plurality of different data sources are conformed to a conformed user data set using a conform mapping schema, and the conformed data set is then analyzed to create a bitmap mapping schema which provides a mapping from the conformed user data set to a bitmap data set. The conformed user data set is then converted to a bitmap data set using the bitmap mapping schema and the current user data in the conformed user data set. A query user interface (UI) may be provided to allow clients or others to query the resulting bitmap data set.

Abstract: A database engine uses bitmap slice indices (BSIs) to combine result bitmaps derived from parent and child tables related via one or more foreign key relationships. To execute a query that involves a parent table and a child table, the database engine parses the query into a parent predicate corresponding to the parent table and a child predicate corresponding to the child table. The database engine executes the parent predicate using a parent bitmap index to generate a parent result bitmap and executes the child predicate using a child bitmap index to generate a child result bitmap. The database engine transforms the child result bitmap, based on the BSI, to generate a transformed child result bitmap having columns that correspond to the primary key of the parent table. The database engine can then combine the parent result bitmap directly with the transformed child result bitmap to generate query results.

Abstract: Methods and systems for converting user data from disparate sources to bitmap data are described, where user data from a plurality of different data sources are conformed to a conformed user data set using a conform mapping schema, and the conformed data set is then analyzed to create a bitmap mapping schema which provides a mapping from the conformed user data set to a bitmap data set. The conformed user data set is then converted to a bitmap data set using the bitmap mapping schema and the current user data in the conformed user data set. A query user interface (UI) may be provided to allow clients or others to query the resulting bitmap data set.